<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
      body{
        margin: 0;
        padding: 0;
        background: #607d8d;
     }
    .box{
      position: absolute;
      top: calc(50% - 100px);
      left: calc(50% - 135px);
      height: 200px;
      transform-style: preserve-3d;
      transform: perspective(1000px) rotateY(45deg);
    }
    .box div{
        position: absolute;
        top: 0;
        left:  0;
        height: 100%;
        display: flex;
        transform-style: preserve-3d;
    }
    .box div span{
        position: relative;
        display: block;
        width: 50px;
        height: 100%;
        background: linear-gradient(#e8e8e8,#a7a7a7,#e8e8e8);
        animation: animate 2.8s linear infinite;
    }
    .box div span::before{
        content: '';
        position: absolute;
        display: block;
        width: 100%;
        height: 100%;
        background: #000;
        transform-style: preserve-3d;
        transform: translateX(-25px) scaleY(0.5);
    }
    .box div span:nth-child(1){
        animation-delay: 0s;
    }
    .box div span:nth-child(2){
        animation-delay: 0.2s;
    }
    .box div span:nth-child(3){
        animation-delay: 0.4s;
    }
    .box div span:nth-child(4){
        animation-delay: 0.6s;
    }
    .box div span:nth-child(5){
        animation-delay: 0.8s;
    }
    .box div span:nth-child(6){
        animation-delay: 1s;
    }
    .box div span:nth-child(7){
        animation-delay: 1.2s;
    }
    .box div span:nth-child(8){
        animation-delay: 1.4s;
    } 
    .box div span:nth-child(9){
        animation-delay: 1.6s;
    } 
    @keyframes animate {
        0%{
            transform: rotateX(0deg);
        }
        100%{
            transform: rotateX(360deg);
        }
    }
</style>
<body>
    <div class="box">
        <div>
            <span> </span>
            <span> </span>
            <span> </span>
            <span> </span>
            <span> </span>
            <span> </span>
            <span> </span>
            <span> </span>
            <span> </span>
         </div>
    </div>
</body>
</html>